I, for one, don’t agree with the premise: human beings are bad at memorizing things. Not only are we great at memorizing things, but should a pattern evolve where we do something often, we can do it without effort – without thinking of it (seemingly).

Humans are terrible at remembering to follow a process correctly every time, even when they know it’s important. Eg hospitals periodically have someone observe staff for hand washing between patients and doctors regularly score poorly.